Loose-leaf binder



. Oct. 31, 1939. 5, J4 BRUNNER 2,178,277

LOOSE-LEAF BINDER Filed Nov. 12,- 1938 INVENTOR Patented Oct. 31, 1939 LOOSE-LEAF BINDER Edwin J. Brunner, Royal Oak, Mich.

Application November 12, 1938, Serial No. 240,056

2 Claims.

This invention. relates to a loose-leaf binder having a post structure readily attachable to and detachable from the covers with the contents upon the posts.

An object of this invention is to provide in a loose-leaf binder a combination of covers and detachable post structure so that when material is removed from the binder, it may be removed bound on the posts thus eliminating (1) labor of stripping material from the posts and rebinding it, or (2) expense of sacrificing a set of covers in order to keep material bound on posts, or (3) necessity of leaving material unbound.

A further object is to provide such a combination as will operate simply and'easily.

A further object is an inexpensive and easily manufactured attachment device for the cover and an inexpensive and easily manufactured post structure for (1) two post construction (2) for plurality of posts.

These objects: are preferably attained by a slot incorporated in the back or base cover of thebinder, and by a post structure the base of which at right angles to the posts is designed to fit into the slot snugly so as to be secure while in position and to be readily removable.

In the accompanying drawing Figure 1 is a slotted back cover with a two post structure in place. Figure 2 is a two post structure. Figure 3 is a structure adaptable to more than two posts.

I prefer to incorporate the slot in the back cover by composing the cover of three essential layers of rigid or semirigid material in the drawing, reference numerals l, 2, and 3. These are securely adhered to each other, layer 2, the middle layer, being made the thickness of the base material for the corresponding post structure, and cut out to form the slot indicated by broken line 4. Layer i should extend beyond the slotted edge of 2 far enough in relation to the size of the binder so that the connection between the base cover and the top cover will not pinch the material upon the posts. Layers I and 3 may be made of materials suitable for a finished binder as for instance leather or leatherette so long as they possess enough strength and rigidity to hold the base of the post structure in place.

The two post structure, Figure 2 in the drawing, is fashioned from a single piece of wire or other suitable material of proper length. The posts, 5 are at right angles to sections 6 which are parallel to slotted end of cover. Sections 6 are designed to keep contents from crawling down on base of post structure when structure is removed from covers. Sections '8 are at right angles to sections 6 and these two sections are 5 connected by section 8. Sections 6, sections 1, and section 8 are all in the same plane and section 8 may be V shaped or a loop. Section 8 must be shaped so that sections l engage accurately the sides of the slot in the cover. 10

The post structure for plurality of posts, Figure 3 in the drawing, is a metal or other suitable material base, reference numeral 9' formed with a tongue to engage in the cover slot; and posts i ll, which are fixed to the base in any conventional 15 manner.

Any conventional method maybe used to secure material upon the posts.

I claim:

1. In a loose-leaf binder, the combination of a 0 laminated base cover formed with a slot between its layers designed to receive the tongue of a post structure, and a detachable post structure consisting of a plurality of straight posts fixed rigid in a straight line at right angles to a single 25 plane base which at right angle to the line of posts is tapered down to form a U shaped tongue of suflicient dimensions and strength so that when it is inserted into the slot it will hold the whole poststructure and contents firmly in posi- 30 tion within the cover of the binder.

2. In a loose-leaf binder, the combination of a slotted backcover comprising a laminated base cover member formed with a slot between the layers, the entrance of the slot being parallel 35 with one edge of the cover and the slot extending inwardly sufficiently in dimensions to provide for the insertion of a tongue, and a detachable two post structure made by forming a proper length of Wire so that its mid portion is a ,U- 40 shaped tongue to insert in the slotted back cover, the tongue near the point of issuance from the slot being fitted to correspond with the edge of the slot and being at right angles to the face of the slot, and at the point of issuance a right angle 4 turn outward toward the edges of the cover and on the same plane as said edges, and then after a measurable distance, and exactly the distance to locate the desired rising point of posts, a right turn upward to form the posts of desired lengths. 50

EDWIN J. BRUNNER. 

